/* ============ 乐火传媒官网 · 黑金主题 ============ */
:root {
  --bg: #0a0a0c;
  --bg-alt: #0e0e13;
  --card: #14141b;
  --line: rgba(212, 175, 106, .28);
  --line-soft: rgba(212, 175, 106, .14);
  --gold: #d4af6a;
  --gold-light: #f0d9a6;
  --gold-deep: #a87f3d;
  --text: #e8e6e1;
  --text-dim: #9b978f;
  --serif: 'Noto Serif SC', 'Songti SC', 'STSong', 'SimSun', serif;
  --sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: .02em;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.shown { opacity: 1; transform: none; }

/* ============ 导航 ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: linear-gradient(180deg, rgba(8, 8, 10, .88), rgba(8, 8, 10, .66));
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  border-bottom: 1px solid rgba(212, 175, 106, .16);
  box-shadow: 0 12px 40px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .04);
  transition: background .35s, box-shadow .35s;
}
.nav::after {
  content: ''; position: absolute; left: 6%; right: 6%; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(240, 210, 140, .8), transparent);
  pointer-events: none;
}
.nav.scrolled {
  background: rgba(8, 8, 10, .96);
  box-shadow: 0 16px 46px rgba(0, 0, 0, .62), inset 0 1px 0 rgba(255, 255, 255, .04);
}
.nav-inner {
  max-width: 1320px; margin: 0 auto; padding: 0 32px;
  height: 84px; display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 13px; flex-shrink: 0; }
.brand-badge {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid rgba(212, 175, 106, .55);
  background: radial-gradient(circle at 32% 28%, rgba(212, 175, 106, .3), rgba(212, 175, 106, .05) 64%);
  box-shadow: 0 0 20px rgba(212, 175, 106, .3), inset 0 0 12px rgba(212, 175, 106, .2);
  display: flex; align-items: center; justify-content: center;
}
.brand .flame { width: 22px; height: 22px; fill: #ecd28f; filter: drop-shadow(0 0 6px rgba(212, 175, 106, .8)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
  font-family: var(--serif); font-weight: 900; font-size: 22px; letter-spacing: .14em; white-space: nowrap;
  background: linear-gradient(115deg, #f7e2ac 8%, #e0ba76 48%, #b98a3e 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 2px 10px rgba(212, 175, 106, .28));
}
.brand-en { font-size: 9px; letter-spacing: .44em; color: rgba(212, 175, 106, .55); margin-top: 3px; }
.nav-links { display: flex; gap: 28px; margin-left: auto; align-items: center; }
.nav-links a {
  font-size: 14px; letter-spacing: .1em; color: rgba(235, 232, 225, .72);
  padding: 10px 2px; position: relative; transition: color .25s, text-shadow .25s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 50%; bottom: 2px; height: 1px; width: 0;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transition: width .3s;
}
.nav-links a::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%) scale(0);
  width: 4px; height: 4px; border-radius: 50%; background: var(--gold);
  box-shadow: 0 0 8px rgba(212, 175, 106, .9); transition: transform .3s;
}
.nav-links a:hover, .nav-links a.active { color: #f2ddab; text-shadow: 0 0 16px rgba(212, 175, 106, .5); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active::before { transform: translateX(-50%) scale(1); }
.nav-cta {
  position: relative; overflow: hidden; white-space: nowrap; flex-shrink: 0;
  font-size: 13px; letter-spacing: .14em; color: #1a1408; font-weight: 600;
  background: linear-gradient(135deg, #f2d894, #d4af6a 55%, #c39a52);
  padding: 12px 26px; border-radius: 100px;
  box-shadow: 0 6px 22px rgba(212, 175, 106, .3), inset 0 1px 0 rgba(255, 255, 255, .5);
  transition: transform .25s, box-shadow .25s;
}
.nav-cta::after {
  content: ''; position: absolute; top: 0; left: -90%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .6), transparent);
  transform: skewX(-20deg); animation: ctaShine 3.4s ease-in-out infinite;
}
@keyframes ctaShine { 0% { left: -90%; } 55% { left: 140%; } 100% { left: 140%; } }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(212, 175, 106, .48), inset 0 1px 0 rgba(255, 255, 255, .5); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--gold); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  min-height: 100vh; position: relative;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  background: radial-gradient(1200px 600px at 70% -10%, rgba(212,175,106,.10), transparent 60%),
              radial-gradient(900px 500px at 10% 110%, rgba(168,127,61,.10), transparent 60%),
              var(--bg);
  overflow: hidden; text-align: center; padding: 120px 24px 60px;
}
#stars { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-ribbons { position: absolute; inset: 0; pointer-events: none; }
.hero-ribbons svg { width: 100%; height: 100%; }
.hero-inner { position: relative; z-index: 2; }
.hero-kicker {
  font-size: 13px; letter-spacing: .42em; color: var(--gold);
  text-transform: uppercase; margin-bottom: 26px;
}
.hero-title {
  font-family: var(--serif); font-weight: 900;
  font-size: clamp(40px, 7vw, 84px); letter-spacing: .1em; line-height: 1.25;
  background: linear-gradient(160deg, #f7e6bd 15%, var(--gold) 48%, #9c7434 80%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 18px 60px rgba(212,175,106,.18);
}
.hero-title .dot { color: var(--gold-deep); -webkit-text-fill-color: var(--gold-deep); }
.hero-sub { margin-top: 24px; font-size: clamp(14px, 1.6vw, 18px); color: var(--text-dim); letter-spacing: .14em; }
.hero-badges { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.badge {
  font-size: 12.5px; letter-spacing: .1em; color: var(--gold-light);
  border: 1px solid var(--line); border-radius: 100px; padding: 7px 18px;
  background: rgba(212,175,106,.06);
}
.hero-actions { margin-top: 42px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-gold {
  display: inline-block; padding: 14px 38px; border-radius: 100px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold) 60%, var(--gold-deep));
  color: #1a1408; font-weight: 500; letter-spacing: .12em; font-size: 15px;
  transition: transform .25s, box-shadow .25s;
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(212,175,106,.35); }
.btn-ghost {
  display: inline-block; padding: 14px 38px; border-radius: 100px;
  border: 1px solid var(--line); color: var(--gold-light);
  letter-spacing: .12em; font-size: 15px; transition: .25s;
}
.btn-ghost:hover { background: rgba(212,175,106,.08); border-color: var(--gold); }
.hero-stats {
  position: relative; z-index: 2; margin-top: 80px;
  display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 1px; background: var(--line-soft);
  border: 1px solid var(--line-soft); border-radius: 14px; overflow: hidden;
  max-width: 980px; width: 100%;
}
.hero-stats .stat { background: rgba(14,14,19,.75); backdrop-filter: blur(6px); padding: 26px 12px; }
.stat .num {
  font-family: var(--serif); font-weight: 700; font-size: clamp(26px, 3.4vw, 40px);
  color: var(--gold-light); line-height: 1.2;
}
.stat .num small { font-size: .55em; margin-left: 2px; }
.stat .lbl { font-size: 12.5px; color: var(--text-dim); letter-spacing: .14em; margin-top: 6px; }
.scroll-hint { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); width: 22px; height: 36px; border: 1.5px solid var(--line); border-radius: 12px; }
.scroll-hint i { position: absolute; top: 6px; left: 50%; width: 3px; height: 7px; margin-left: -1.5px; border-radius: 3px; background: var(--gold); animation: hint 1.8s infinite; }
@keyframes hint { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ============ 通用板块 ============ */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.section-alt::before, .section-alt::after {
  content: ''; position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-soft), transparent);
}
.section-alt::before { top: 0; } .section-alt::after { bottom: 0; }
.sec-head { text-align: center; margin-bottom: 64px; }
.kicker { font-size: 12px; letter-spacing: .5em; color: var(--gold); text-transform: uppercase; }
.sec-title {
  font-family: var(--serif); font-weight: 700; font-size: clamp(28px, 4vw, 42px);
  letter-spacing: .16em; margin-top: 14px; color: var(--text);
}
.sec-desc { color: var(--text-dim); margin-top: 12px; font-size: 15px; letter-spacing: .06em; }
.sec-line {
  width: 64px; height: 2px; margin: 22px auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

/* ============ 关于 ============ */
.about-grid { display: grid; grid-template-columns: 1.25fr .85fr; gap: 56px; align-items: center; }
.about-intro p { color: var(--text-dim); font-size: 15.5px; text-align: justify; }
.about-highlights { list-style: none; margin-top: 26px; display: grid; gap: 12px; }
.about-highlights li {
  position: relative; padding-left: 26px; font-size: 14.5px; color: var(--text);
}
.about-highlights li::before {
  content: ''; position: absolute; left: 0; top: .62em; width: 14px; height: 2px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.about-figure { display: flex; justify-content: center; }
.figure-frame {
  width: 300px; height: 300px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 10px;
  background: radial-gradient(circle at 35% 30%, rgba(212,175,106,.14), transparent 60%), var(--card);
  box-shadow: 0 24px 70px rgba(0,0,0,.5), inset 0 0 40px rgba(212,175,106,.05);
  position: relative;
}
.figure-frame::before {
  content: ''; position: absolute; inset: 12px; border-radius: 50%;
  border: 1px dashed var(--line-soft);
}
.figure-flame { width: 44px; height: 44px; fill: var(--gold); filter: drop-shadow(0 0 12px rgba(212,175,106,.6)); }
.figure-slogan { font-family: var(--serif); font-size: 21px; letter-spacing: .28em; color: var(--gold-light); font-weight: 700; }
.figure-sub { font-size: 12px; color: var(--text-dim); letter-spacing: .12em; }

.timeline { margin-top: 76px; position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.timeline::before {
  content: ''; position: absolute; top: 9px; left: 2%; right: 2%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}
.tl-item { position: relative; padding-top: 34px; }
.tl-item::before {
  content: ''; position: absolute; top: 3px; left: 0; width: 13px; height: 13px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--gold); box-shadow: 0 0 10px rgba(212,175,106,.55);
}
.tl-year { font-family: var(--serif); font-weight: 700; color: var(--gold); font-size: 17px; letter-spacing: .06em; }
.tl-title { font-size: 14.5px; font-weight: 500; color: var(--text); margin-top: 4px; }
.tl-desc { font-size: 12.5px; color: var(--text-dim); margin-top: 6px; line-height: 1.7; }

.dept-grid { margin-top: 72px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.dept-card {
  border: 1px solid var(--line-soft); border-radius: 14px; padding: 28px 24px;
  background: var(--card); transition: transform .3s, border-color .3s, box-shadow .3s;
}
.dept-card:hover { transform: translateY(-5px); border-color: var(--line); box-shadow: 0 18px 40px rgba(0,0,0,.4); }
.dept-card .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 8px rgba(212,175,106,.7); margin-bottom: 18px; }
.dept-card h3 { font-family: var(--serif); font-size: 20px; color: var(--gold-light); letter-spacing: .1em; }
.dept-card .duty { font-size: 12px; color: var(--gold); letter-spacing: .18em; margin: 6px 0 12px; }
.dept-card p { font-size: 13px; color: var(--text-dim); line-height: 1.9; }

/* ============ 服务能力 ============ */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-card {
  position: relative; border: 1px solid var(--line-soft); border-radius: 16px;
  padding: 36px 26px; background: var(--card); overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.service-card::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(320px 200px at 50% -20%, rgba(212,175,106,.14), transparent 70%);
  opacity: 0; transition: opacity .35s;
}
.service-card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: 0 20px 46px rgba(0,0,0,.45); }
.service-card:hover::after { opacity: 1; }
.service-icon {
  width: 54px; height: 54px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; margin-bottom: 22px;
  background: rgba(212,175,106,.06);
}
.service-icon svg { width: 26px; height: 26px; stroke: var(--gold); fill: none; stroke-width: 1.5; }
.service-card h3 { font-family: var(--serif); font-size: 21px; letter-spacing: .08em; color: var(--text); }
.service-sub { font-size: 11px; letter-spacing: .32em; color: var(--gold); margin: 6px 0 14px; }
.service-card > p { font-size: 13.5px; color: var(--text-dim); line-height: 1.9; }
.service-points { list-style: none; margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.service-points li {
  font-size: 12px; color: var(--gold-light); border: 1px solid var(--line-soft);
  padding: 4px 12px; border-radius: 100px; background: rgba(212,175,106,.05);
}
.service-chain {
  margin-top: 56px; border: 1px solid var(--line-soft); border-radius: 16px;
  padding: 34px 38px; background: var(--card);
}
.chain-title { font-family: var(--serif); font-size: 18px; color: var(--gold-light); letter-spacing: .1em; text-align: center; }
.chain-steps { display: flex; align-items: stretch; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.chain-step { flex: 1; min-width: 160px; border: 1px solid var(--line-soft); border-radius: 12px; padding: 18px 16px; text-align: center; }
.chain-step b { display: block; font-family: var(--serif); font-size: 17px; color: var(--gold); letter-spacing: .2em; }
.chain-step span { display: block; font-size: 12px; color: var(--text-dim); margin-top: 8px; line-height: 1.7; }
.chain-arrow { align-self: center; color: var(--gold); font-size: 18px; }

/* ============ 案例 ============ */
.case-tabs, .team-tabs { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 44px; }
.tab {
  font-size: 13.5px; letter-spacing: .12em; color: var(--text-dim); cursor: pointer;
  border: 1px solid var(--line-soft); border-radius: 100px; padding: 8px 24px;
  background: transparent; transition: .25s; font-family: var(--sans);
}
.tab:hover { color: var(--gold-light); border-color: var(--line); }
.tab.active {
  color: #1a1408; background: linear-gradient(135deg, var(--gold-light), var(--gold));
  border-color: transparent; font-weight: 500;
}
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card {
  position: relative; border: 1px solid var(--line-soft); border-radius: 16px; overflow: hidden;
  background: var(--card); cursor: pointer; transition: transform .3s, border-color .3s, box-shadow .3s;
}
.case-card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: 0 22px 50px rgba(0,0,0,.5); }
.case-cover { position: relative; height: 190px; overflow: hidden; }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card:hover .case-cover img { transform: scale(1.07); }
.case-cover::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,12,.05) 30%, rgba(10,10,12,.88) 100%);
}
.case-cover .case-cat {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  font-size: 11px; letter-spacing: .16em; color: var(--gold-light);
  border: 1px solid var(--line); border-radius: 100px; padding: 4px 12px;
  background: rgba(10,10,12,.62); backdrop-filter: blur(6px);
}
.case-cover .case-cover-title { position: absolute; left: 18px; right: 18px; bottom: 12px; z-index: 2; }
.case-cover-title h3 { font-family: var(--serif); font-size: 20px; color: #fff; letter-spacing: .05em; }
.case-cover-title p { font-size: 12px; color: rgba(240,217,166,.85); margin-top: 2px; }
.case-metrics {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line-soft); border-top: 1px solid var(--line-soft);
}
.case-metrics .cm { background: var(--card); padding: 14px 16px; }
.cm b { font-family: var(--serif); font-size: 19px; color: var(--gold-light); font-weight: 700; }
.cm span { display: block; font-size: 11.5px; color: var(--text-dim); letter-spacing: .06em; margin-top: 2px; }
.case-more { padding: 14px 18px; font-size: 12.5px; color: var(--gold); letter-spacing: .2em; text-align: center; border-top: 1px solid var(--line-soft); }

/* ============ 团队 ============ */
.team-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.team-card {
  border: 1px solid var(--line-soft); border-radius: 16px; padding: 28px 14px 22px;
  background: var(--card); text-align: center; cursor: pointer;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.team-card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: 0 20px 44px rgba(0,0,0,.45); }
.team-avatar {
  width: 92px; height: 92px; margin: 0 auto 16px; border-radius: 50%;
  border: 2px solid var(--gold); padding: 3px; position: relative;
  box-shadow: 0 0 0 4px rgba(212,175,106,.08), 0 8px 24px rgba(0,0,0,.4);
}
.team-avatar img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.team-card h3 { font-family: var(--serif); font-size: 18px; color: var(--text); letter-spacing: .1em; }
.team-card .role { font-size: 11.5px; color: var(--gold); margin-top: 5px; letter-spacing: .04em; line-height: 1.6; min-height: 36px; }
.team-card .group-tag {
  display: inline-block; margin-top: 10px; font-size: 10.5px; color: var(--text-dim);
  border: 1px solid var(--line-soft); border-radius: 100px; padding: 2px 12px; letter-spacing: .14em;
}

/* ============ 合作模式 ============ */
.coop-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.coop-card {
  border: 1px solid var(--line-soft); border-radius: 14px; padding: 30px 22px;
  background: var(--card); position: relative; overflow: hidden;
  transition: transform .3s, border-color .3s;
}
.coop-card::before {
  content: attr(data-index); position: absolute; top: 10px; right: 14px;
  font-family: var(--serif); font-size: 44px; font-weight: 900;
  color: rgba(212,175,106,.1); line-height: 1;
}
.coop-card:hover { transform: translateY(-5px); border-color: var(--line); }
.coop-card h3 { font-family: var(--serif); font-size: 18px; color: var(--gold-light); letter-spacing: .08em; }
.coop-card p { font-size: 12.5px; color: var(--text-dim); margin-top: 12px; line-height: 1.9; }

/* ============ 联系 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-info { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-content: center; }
.ci-item { border: 1px solid var(--line-soft); border-radius: 14px; padding: 24px; background: var(--card); }
.ci-item .ci-label { font-size: 11px; letter-spacing: .3em; color: var(--gold); }
.ci-item .ci-value { font-size: 16px; color: var(--text); margin-top: 10px; font-weight: 400; }
.contact-cta {
  border: 1px solid var(--line); border-radius: 18px; padding: 48px 36px;
  background: radial-gradient(500px 260px at 50% -10%, rgba(212,175,106,.16), transparent 70%), var(--card);
  text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
}
.cta-flame { width: 46px; height: 46px; fill: var(--gold); filter: drop-shadow(0 0 14px rgba(212,175,106,.6)); }
.contact-cta h3 { font-family: var(--serif); font-size: 26px; color: var(--gold-light); letter-spacing: .16em; }
.contact-cta p { font-size: 14px; color: var(--text-dim); }

/* ============ 页脚 ============ */
.footer { border-top: 1px solid var(--line-soft); background: #08080a; padding: 44px 0 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.footer-brand b { font-family: var(--serif); font-size: 16px; color: var(--gold-light); letter-spacing: .08em; white-space: nowrap; }
.footer-brand p { font-size: 11.5px; color: var(--text-dim); letter-spacing: .22em; margin-top: 2px; white-space: nowrap; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--text-dim); transition: color .25s; }
.footer-links a:hover { color: var(--gold-light); }
.footer-icp { text-align: center; font-size: 12px; color: #5d5a54; padding: 18px 24px 22px; margin-top: 34px; border-top: 1px solid rgba(212,175,106,.07); }

/* ============ 弹窗 ============ */
.modal-mask {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(5,5,7,.78); backdrop-filter: blur(8px);
  align-items: center; justify-content: padding; padding: 24px;
}
.modal-mask.show { display: flex; align-items: center; justify-content: center; }
.modal {
  width: min(860px, 100%); max-height: 86vh; overflow-y: auto;
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: 18px;
  position: relative; box-shadow: 0 40px 100px rgba(0,0,0,.6);
  animation: pop .3s ease;
}
@keyframes pop { from { opacity: 0; transform: translateY(18px) scale(.98); } to { opacity: 1; transform: none; } }
.modal-close {
  position: absolute; top: 14px; right: 16px; z-index: 3;
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line);
  background: rgba(10,10,12,.6); color: var(--gold-light); font-size: 20px; cursor: pointer;
  transition: .25s;
}
.modal-close:hover { background: var(--gold); color: #1a1408; }
.modal-cover { height: 280px; position: relative; }
.modal-cover img { width: 100%; height: 100%; object-fit: cover; border-radius: 18px 18px 0 0; }
.modal-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 20%, var(--bg-alt) 100%); border-radius: 18px 18px 0 0; }
.modal-cover .mc-text { position: absolute; left: 34px; right: 34px; bottom: 14px; z-index: 2; }
.mc-text .mc-cat { font-size: 11px; letter-spacing: .3em; color: var(--gold); }
.mc-text h3 { font-family: var(--serif); font-size: 28px; color: #fff; letter-spacing: .05em; margin-top: 4px; }
.mc-text p { font-size: 13px; color: rgba(240,217,166,.85); margin-top: 4px; }
.modal-content { padding: 26px 34px 36px; }
.modal-content .mc-summary { color: var(--text-dim); font-size: 14px; text-align: justify; }
.mc-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 24px; }
.mc-metrics .cm { border: 1px solid var(--line-soft); border-radius: 12px; background: var(--card); padding: 16px; text-align: center; }
.mc-metrics .cm b { font-size: 22px; }
.mc-subtitle { font-family: var(--serif); font-size: 17px; color: var(--gold-light); letter-spacing: .12em; margin: 28px 0 14px; }
.mc-strategy { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mc-strategy li {
  font-size: 13px; color: var(--text-dim); border: 1px solid var(--line-soft);
  border-radius: 10px; padding: 12px 16px; background: var(--card); position: relative; padding-left: 34px;
}
.mc-strategy li::before { content: ''; position: absolute; left: 16px; top: 20px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 6px rgba(212,175,106,.7); }
/* 团队成员弹窗 */
.team-modal-head { display: flex; gap: 28px; align-items: center; padding: 36px 34px 0; }
.team-modal-head .team-avatar { width: 110px; height: 110px; margin: 0; flex-shrink: 0; }
.tm-name h3 { font-family: var(--serif); font-size: 26px; color: var(--gold-light); letter-spacing: .1em; }
.tm-name .role { color: var(--gold); font-size: 13px; margin-top: 6px; }
.tm-name .group-tag { margin-top: 10px; }
.tm-body { padding: 22px 34px 36px; }
.tm-body p { color: var(--text-dim); font-size: 14px; text-align: justify; }
.tm-skills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.tm-skills span { font-size: 12px; color: var(--gold-light); border: 1px solid var(--line); border-radius: 100px; padding: 5px 16px; background: rgba(212,175,106,.06); }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .service-grid, .dept-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(4, 1fr); }
  .coop-grid { grid-template-columns: repeat(3, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .timeline::before { display: none; }
}
@media (max-width: 820px) {
  .nav-inner { gap: 14px; padding: 0 16px; }
  .brand { flex-shrink: 0; }
  .brand-en { display: none; }
  .nav-links {
    position: fixed; top: 84px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 10px 24px 24px;
    background: rgba(10,10,12,.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-soft);
    transform: translateY(-130%); transition: transform .35s;
    margin-left: 0;
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 0; border-bottom: 1px solid rgba(212,175,106,.07); }
  .nav-toggle { display: flex; flex-shrink: 0; }
  .nav-cta { margin-left: auto; padding: 9px 14px; font-size: 12px; white-space: nowrap; flex-shrink: 0; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .coop-grid { grid-template-columns: repeat(2, 1fr); }
  .mc-metrics { grid-template-columns: repeat(2, 1fr); }
  .mc-strategy { grid-template-columns: 1fr; }
  .team-modal-head { flex-direction: column; text-align: center; }
}
@media (max-width: 560px) {
  .section { padding: 76px 0; }
  .case-grid, .service-grid, .dept-grid, .coop-grid, .contact-info { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: 1fr; }
  .chain-arrow { display: none; }
  .hero-actions .btn-gold, .hero-actions .btn-ghost { padding: 12px 26px; font-size: 14px; }
}

/* ============ 优质视频案例 ============ */
.video-grid { display: flex; flex-wrap: wrap; gap: 26px; }
.video-card {
  position: relative; width: calc(50% - 13px); border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  cursor: pointer; transition: transform .35s, box-shadow .35s, border-color .35s;
}
.video-card:hover { transform: translateY(-6px); border-color: rgba(212,175,106,.45); box-shadow: 0 22px 50px rgba(0,0,0,.5); }
.video-poster { position: relative; width: 100%; overflow: hidden; }
.video-poster img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s; }
.video-card:hover .video-poster img { transform: scale(1.05); }
.video-play {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 64px; height: 64px; border-radius: 50%;
  background: rgba(10,10,12,.55); border: 1px solid rgba(212,175,106,.7);
  backdrop-filter: blur(4px); display: flex; align-items: center; justify-content: center;
  transition: background .3s, transform .3s;
}
.video-play svg { width: 24px; height: 24px; fill: var(--gold-light); margin-left: 3px; }
.video-card:hover .video-play { background: rgba(212,175,106,.85); transform: translate(-50%,-50%) scale(1.08); }
.video-card:hover .video-play svg { fill: #16130c; }
.video-dur {
  position: absolute; right: 12px; top: 12px; font-size: 12px; color: #fff;
  background: rgba(0,0,0,.55); padding: 3px 10px; border-radius: 100px; letter-spacing: .05em;
}
.video-info { padding: 18px 22px 20px; }
.video-info h3 { font-family: var(--serif); font-size: 18px; color: var(--gold-light); font-weight: 700; }
.video-meta { display: flex; align-items: center; gap: 12px; margin-top: 8px; font-size: 13px; color: var(--text-dim); flex-wrap: wrap; }
.video-meta .tag { color: var(--gold); border: 1px solid rgba(212,175,106,.35); border-radius: 100px; padding: 1px 10px; font-size: 12px; }
.video-meta b { color: var(--gold-light); font-weight: 600; }

/* ============ 优质直播画面 ============ */
.live-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.live-item {
  position: relative; border-radius: 14px; overflow: hidden; cursor: pointer;
  border: 1px solid var(--line-soft); aspect-ratio: 16 / 9; background: var(--bg-card);
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.live-item:hover { transform: translateY(-5px); border-color: rgba(212,175,106,.45); box-shadow: 0 18px 44px rgba(0,0,0,.5); }
.live-item img, .live-item video { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s; }
.live-item:hover img, .live-item:hover video { transform: scale(1.06); }
.live-badge {
  position: absolute; left: 12px; top: 12px; z-index: 2; font-size: 12px; letter-spacing: .05em;
  color: #fff; background: rgba(200,60,60,.85); padding: 3px 10px; border-radius: 100px; display: flex; align-items: center; gap: 6px;
}
.live-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #fff; animation: livePulse 1.4s infinite; }
@keyframes livePulse { 0%,100% { opacity: 1; } 50% { opacity: .25; } }
.live-play {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2;
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(10,10,12,.5); border: 1px solid rgba(212,175,106,.7);
  display: flex; align-items: center; justify-content: center; transition: background .3s;
}
.live-play svg { width: 19px; height: 19px; fill: var(--gold-light); margin-left: 2px; }
.live-item:hover .live-play { background: rgba(212,175,106,.85); }
.live-item:hover .live-play svg { fill: #16130c; }
.live-title {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 30px 16px 14px;
  font-size: 14px; color: #fff; letter-spacing: .03em;
  background: linear-gradient(transparent, rgba(0,0,0,.78));
}
.live-item.is-video .live-title { padding-left: 44px; }

/* ============ 视频弹窗 ============ */
.modal-video-wrap { background: #000; border-radius: 10px; overflow: hidden; }
.modal-video-wrap video { width: 100%; max-height: 68vh; display: block; margin: 0 auto; }
.modal-video-title { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 6px 2px; }
.modal-video-title h3 { font-family: var(--serif); font-size: 18px; color: var(--gold-light); }
.modal-video-title span { font-size: 13px; color: var(--text-dim); white-space: nowrap; }
.modal-lightbox { background: #000; border-radius: 10px; overflow: hidden; }
.modal-lightbox img { width: 100%; max-height: 72vh; object-fit: contain; display: block; margin: 0 auto; }
.modal-lightbox-title { padding: 14px 6px 2px; font-size: 14px; color: var(--text-dim); text-align: center; }

/* 视频/直播 响应式 */
@media (max-width: 1080px) {
  .nav-links { gap: 20px; }
  .live-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .video-card { width: 100%; }
  .video-play { width: 56px; height: 56px; }
}
@media (max-width: 560px) {
  .live-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .live-title { font-size: 12px; padding: 22px 10px 10px; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 13px; }
}